How Can Hairline Crack On Coccyx Bone Be Treated?

After I met with an accident before 3.5 months in my life first time, I instantly felt pain in my west. After 3-4 days in x-ray, it get cleared that i have a hair line crack in coccyx bone. I tried many medicines even ultra sound therapy for 11 days, but nothing helped me. Since 3.5 months I sit over a seat which is specifically made for this kind of pains. While sleeping in straight condition, I don t feel comfortable and it feels like swelling in tail bone area. As such it does not seems in outer part of the body but it may be inside. I take warm water healing at least once a day for 10 minutes, but till now didn t found any major improvement. I can t drive vehicle even. I am a software engineer so my job is to just sit for the whole day in front of the computer, but i try to move around every half n hour so i can get relief from the pain. How could I come over this soon?